Spectrum: Local Antimicrobial Stewardship, for UCLA Health

Ampicillin-Sulbactam - Antibiogram Data

Anaerobic Bacteria
% of Isolates Susceptible

Fusobacterium species100%
n = 20
Clostridium perfringens100%
n = 15
Clostridium difficile99%
n = 76

Clostridoides (Clostridium) difficile isolates are from an intestinal source; these results do not imply efficacy for intraluminal infections.

Prevotella species97%
n = 29
Bacteroides uniformis84%
n = 19
Bacteroides fragilis84%
n = 129
Bacteroides thetaiotaomicron82%
n = 76
Bacteroides ovatus80%
n = 30
Parabacteroides distasonis59%
n = 27

Calculated from fewer than the CLSI document M39 recommendation of 30 isolates

Bacteroides vulgatus45%
n = 20

Note

See ' General Spectrum of Activity' Section